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Xue C, Jia H, Cao R, Cai W, Hong W, Tu J, Wang S, Jiang Q, Bi C, Shan A, Dong N. Oleanolic acid improved intestinal immune function by activating and potentiating bile acids receptor signaling in E. coli-challenged piglets. J Anim Sci Biotechnol 2024; 15:79. [PMID: 38760843 PMCID: PMC11102245 DOI: 10.1186/s40104-024-01037-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 04/18/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND Infection with pathogenic bacteria during nonantibiotic breeding is one of the main causes of animal intestinal diseases. Oleanolic acid (OA) is a pentacyclic triterpene that is ubiquitous in plants. Our previous work demonstrated the protective effect of OA on intestinal health, but the underlying molecular mechanisms remain unclear. This study investigated whether dietary supplementation with OA can prevent diarrhea and intestinal immune dysregulation caused by enterotoxigenic Escherichia coli (ETEC) in piglets. The key molecular role of bile acid receptor signaling in this process has also been explored. RESULTS Our results demonstrated that OA supplementation alleviated the disturbance of bile acid metabolism in ETEC-infected piglets (P < 0.05). OA supplementation stabilized the composition of the bile acid pool in piglets by regulating the enterohepatic circulation of bile acids and significantly increased the contents of UDCA and CDCA in the ileum and cecum (P < 0.05). This may also explain why OA can maintain the stability of the intestinal microbiota structure in ETEC-challenged piglets. In addition, as a natural ligand of bile acid receptors, OA can reduce the severity of intestinal inflammation and enhance the strength of intestinal epithelial cell antimicrobial programs through the bile acid receptors TGR5 and FXR (P < 0.05). Specifically, OA inhibited NF-κB-mediated intestinal inflammation by directly activating TGR5 and its downstream cAMP-PKA-CREB signaling pathway (P < 0.05). Furthermore, OA enhanced CDCA-mediated MEK-ERK signaling in intestinal epithelial cells by upregulating the expression of FXR (P < 0.05), thereby upregulating the expression of endogenous defense molecules in intestinal epithelial cells. CONCLUSIONS In conclusion, our findings suggest that OA-mediated regulation of bile acid metabolism plays an important role in the innate immune response, which provides a new diet-based intervention for intestinal diseases caused by pathogenic bacterial infections in piglets.
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Affiliation(s)
- Chenyu Xue
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Hongpeng Jia
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Rujing Cao
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Wenjie Cai
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Weichen Hong
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Jianing Tu
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Songtao Wang
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Qianzhi Jiang
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Chongpeng Bi
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Anshan Shan
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China
| | - Na Dong
- The Laboratory of Molecular Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, P. R. China.
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Han J, Wu P, Wen Y, Liu C, Liu X, Tao H, Zhang F, Zhang X, Ye Q, Shen T, Chen X, Yu H. The zhuyu pill relieves rat cholestasis by regulating the mRNA expression of lipid and bile metabolism associated genes. Front Pharmacol 2023; 14:1280864. [PMID: 37881184 PMCID: PMC10597705 DOI: 10.3389/fphar.2023.1280864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/29/2023] [Indexed: 10/27/2023] Open
Abstract
Background: The Zhuyu pill (ZYP), composed of Coptis chinensis Franch. and Tetradium ruticarpum (A. Jussieu) T. G. Hartley, is an effective traditional Chinese medicine with potential anti-cholestatic effects. However, the underlying mechanisms of ZYP remain unknown. Objective: To investigate the mechanism underlying the interventional effect of ZYP on mRNA-seq analysis in cholestasis rat models. Materials and methods: This study tested the effects of a low-dose (0.6 g/kg) and high-dose (1.2 g/kg) of ZYP on a cholestasis rat model induced by α-naphthyl-isothiocyanate (ANIT, 50 mg/kg). Serum biochemistry and histopathology results were used to evaluate the therapeutic effect of ZYP, and mRNA-Seq analysis was performed and verified using real-time fluorescence quantitative PCR (qRT-PCR). GO, KEGG, and GSEA analyses were integrated to identify the mechanism by which ZYP impacted cholestatic rats. Results: ZYP was shown to significantly improve abnormal changes in the biochemical blood indexes and liver histopathology of cholestasis rats and regulate pathways related to bile and lipid metabolism, including fatty acid metabolism, retinol metabolism, and steroid hormone biosynthesis, to alleviate inflammation, cholestasis, and lipid metabolism disorders. Relative expression of the essential genes Cyp2a1, Ephx2, Acox2, Cyp1a2, Cyp2c11, and Sult2a1 was verified by qRT-PCR and showed the same trend as mRNA-seq analysis. Conclusion: ZYP has a significant anti-cholestatic effect by regulating bile metabolism and lipid metabolism related pathways. These findings indicate that ZYP is a novel and promising prospect for treating cholestasis.
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Affiliation(s)
- Jun Han
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Peijie Wu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yueqiang Wen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Pediatrics, Guang’an Traditional Chinese Medicine Hospital, Guang’an, China
| | - Chao Liu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xinglong Liu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Huan Tao
- Department of Dermatology, Cangxi Traditional Chinese Medicine Hospital, Guangyuan, China
| | - Fenghua Zhang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaodan Zhang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiaobo Ye
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Tao Shen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofeng Chen
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Han Yu
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Mohagheghzadeh A, Badr P, Mohagheghzadeh A, Hemmati S. Hypericum perforatum L. and the Underlying Molecular Mechanisms for Its Choleretic, Cholagogue, and Regenerative Properties. Pharmaceuticals (Basel) 2023; 16:887. [PMID: 37375834 PMCID: PMC10300974 DOI: 10.3390/ph16060887] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Any defects in bile formation, secretion, or flow may give rise to cholestasis, liver fibrosis, cirrhosis, and hepatocellular carcinoma. As the pathogenesis of hepatic disorders is multifactorial, targeting parallel pathways potentially increases the outcome of therapy. Hypericum perforatum has been famed for its anti-depressive effects. However, according to traditional Persian medicine, it helps with jaundice and acts as a choleretic medication. Here, we will discuss the underlying molecular mechanisms of Hypericum for its use in hepatobiliary disorders. Differentially expressed genes retrieved from microarray data analysis upon treatment with safe doses of Hypericum extract and intersection with the genes involved in cholestasis are identified. Target genes are located mainly at the endomembrane system with integrin-binding ability. Activation of α5β1 integrins, as osmo-sensors in the liver, activates a non-receptor tyrosine kinase, c-SRC, which leads to the insertion of bile acid transporters into the canalicular membrane to trigger choleresis. Hypericum upregulates CDK6 that controls cell proliferation, compensating for the bile acid damage to hepatocytes. It induces ICAM1 to stimulate liver regeneration and regulates nischarin, a hepatoprotective receptor. The extract targets the expression of conserved oligomeric Golgi (COG) and facilitates the movement of bile acids toward the canalicular membrane via Golgi-derived vesicles. In addition, Hypericum induces SCP2, an intracellular cholesterol transporter, to maintain cholesterol homeostasis. We have also provided a comprehensive view of the target genes affected by Hypericum's main metabolites, such as hypericin, hyperforin, quercitrin, isoquercitrin, quercetin, kaempferol, rutin, and p-coumaric acid to enlighten a new scope in the management of chronic liver disorders. Altogether, standard trials using Hypericum as a neo-adjuvant or second-line therapy in ursodeoxycholic-acid-non-responder patients define the future trajectories of cholestasis treatment with this product.
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Affiliation(s)
- Ala Mohagheghzadeh
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran;
| | - Parmis Badr
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran; (P.B.); (A.M.)
| | - Abdolali Mohagheghzadeh
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran; (P.B.); (A.M.)
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran
| | - Shiva Hemmati
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran;
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz 71468-64685, Iran
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI University, Cheras, Kuala Lumpur 56000, Malaysia
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Heintze T, Wilhelm D, Schmidlin T, Hofmann U, Zanger UM, Schwab M, Klein K. Effects of Diminished NADPH:cytochrome P450 Reductase in Human Hepatocytes on Lipid and Bile Acid Homeostasis. Front Pharmacol 2021; 12:769703. [PMID: 34867397 PMCID: PMC8634102 DOI: 10.3389/fphar.2021.769703] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/11/2021] [Indexed: 12/16/2022] Open
Abstract
NADPH:cytochrome P450 oxidoreductase (POR) is the obligate electron donor for microsomal cytochrome P450 (CYP) enzymes involved in the biosynthesis of endogenous substances like bile acids and other steroids as well as in the oxidative metabolism of xenobiotics. P450 oxidoreductase also supports other redox enzymes in fatty acid and cholesterol pathways. Recently, we have established CRISPR/Cas9-mediated POR knockdown in a human hepatic cell model, HepaRG, and demonstrated the differential effects of limited POR expression on CYP activity. The aim of the present work was to systematically investigate the impact of POR knockdown with a focus on the expression of ADME (absorption, distribution, metabolism, and excretion) genes and related regulators. Functional consequences have been assessed using quantitative mass spectrometry for targeted metabolomics covering bile acids, and cholesterol and its precursors, and for untargeted proteomics. In addition to the previously described alteration of RNA expression of CYP genes, we showed significant downregulation of transcriptional regulators of drug metabolism and transport, including NR1I3 (CAR), NR1I2 (PXR), NR1H4 (FXR), and NR1H3 (LXRα) in cells with POR gene disruption. Furthermore, POR knockdown resulted in deregulated bile acid and cholesterol biosynthesis demonstrated by low levels of cholic acid derivates and increased concentrations of chenodeoxycholic acid derivates, respectively. Systemic effects of POR knockdown on global protein expression were indicated by downregulation of several metabolic pathways including lipid metabolism and biological oxidation reactions. The deduced protein network map corroborates CYP enzymes as direct interaction partners, whereas changes in lipid metabolism and homeostasis are the result of indirect effects. In summary, our results emphasize a widespread role of POR in various metabolic pathways and provide the first human data on the effects of diminished POR expression on drug and endogenous metabolism in a genomeedited HepaRG cell model.
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Affiliation(s)
- Tamara Heintze
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Eberhard Karls University, Tübingen, Germany
| | - Denise Wilhelm
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
| | - Thierry Schmidlin
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Eberhard Karls University, Tübingen, Germany.,Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Ute Hofmann
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Eberhard Karls University, Tübingen, Germany
| | - Ulrich M Zanger
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Eberhard Karls University, Tübingen, Germany
| | - Matthias Schwab
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Departments of Clinical Pharmacology and Biochemistry and Pharmacy, University of Tuebingen, Tübingen, Germany.,Cluster of Excellence IFIT (EXC 2180) "Image-Guided and Functionally Instructed Tumor Therapies", University of Tübingen, Tübingen, Germany
| | - Kathrin Klein
- Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany.,Eberhard Karls University, Tübingen, Germany
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5
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Akhmedov VA, Gaus OV. Modern views on development mechanisms and tactics for treatment of patients with gallbladder disease associated with metabolic syndrome. ACTA ACUST UNITED AC 2019. [DOI: 10.33667/2078-5631-2019-2-13(388)-52-56] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The high prevalence of metabolic syndrome in population has led to the cholelithiasis is important problem of modern health care along with coronary heart disease, arterial hypertension and diabetes. The main role in the formation of gallbladder pathology in patients with metabolic syndrome belongs to insulin resistance, atherogenic dyslipidemia, and non‑alcoholic fatty liver disease. Тhe prescription of ursodeoxycholic acid is pathogenetically justified. This article presents modern views on the mechanisms formation of gallstone disease in the conditions of metabolic disorders and management of this patients based on the results own research.
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6
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Dantsuka A, Ichii O, Hanberg A, Elewa YHA, Otsuka-Kanazawa S, Nakamura T, Kon Y. Histopathological features of the proper gastric glands in FVB/N-background mice carrying constitutively-active aryl-hydrocarbon receptor. BMC Gastroenterol 2019; 19:102. [PMID: 31226941 PMCID: PMC6588904 DOI: 10.1186/s12876-019-1009-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 06/04/2019] [Indexed: 01/02/2023] Open
Abstract
Background Aryl-hydrocarbon receptor (AhR) is a multiple ligand-activated transcription factor that has important roles in xenobiotic, physiological, or pathological functions. Transgenic mice systemically expressing constitutively-active AhR (CA-AhR) have been created to mimic activated AhR signaling in vivo. However, their detailed histopathological features are unclear. In the present study, we generated CA-AhR-expressing FVB/N mice (FVB-CA-AhR mice) and clarified their phenotypes in detail. Methods Male and female FVB-CA-AhR and wild-type mice were histopathologically examined from 6 to 33 weeks of age. Results Among the systemic organs, only the stomachs in FVB-CA-AhR mice showed pathological changes including cystic structures beneath the serosa; in addition, stomach weights increased with age. Histopathologically, cystic structures and alcian blue-positive metaplasia were observed in the mucosa of the proper gastric glands, and these two histometric parameters were positively correlated. Furthermore, proliferating cells shifted from the isthmus to the base of the glands, and parietal cells decreased. Age-related histopathological changes were clearer in females than in males. Importantly, in FVB-CA-AhR mice, intramucosal cysts developed as extramucosal cysts beneath the serosa, penetrating the lamina muscularis mucosae and the muscularis propria. Their incidence reached 100% in 28-week-old male mice and 33-week-old female mice. Extramucosal cysts contained alcian blue-, Griffonia simplicifolia lectin II-, or trefoil factor 2-positive cells, suggesting a stomach origin for the cysts and spasmolytic polypeptide-expressing metaplasia-like lesions. Conclusions Disease onset occurred earlier in FVB-CA-AhR mice than previously reported in C57BL/6-derived CA-AhR mice. Importantly, the histopathological features were partly similar with gastritis cystica profunda in humans and animals. Excessive activation of AhR signaling aggravated abnormalities in the gastric mucosa and were affected by both genetic- and sex-related factors. Electronic supplementary material The online version of this article (10.1186/s12876-019-1009-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ai Dantsuka
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan
| | - Osamu Ichii
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan
| | - Annika Hanberg
- Institute of Environmental Medicine, Karolinska Institutet, SE-171 77, Stockholm, Sweden
| | - Yaser Hosny Ali Elewa
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan.,Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44519, Egypt
| | - Saori Otsuka-Kanazawa
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan
| | - Teppei Nakamura
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan.,Section of Biological Safety Research, Chitose Laboratory, Japan Food Research Laboratories, Bunkyo 2-3, Chitose, 066-0052, Japan
| | - Yasuhiro Kon
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan, Kita 18, Nishi 9, Kita-ku, Sapporo, 060-0818, Japan.
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7
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Villalona G, Price A, Blomenkamp K, Manithody C, Saxena S, Ratchford T, Westrich M, Kakarla V, Pochampally S, Phillips W, Heafner N, Korremla N, Greenspon J, Guzman MA, Kumar Jain A. No Gut No Gain! Enteral Bile Acid Treatment Preserves Gut Growth but Not Parenteral Nutrition-Associated Liver Injury in a Novel Extensive Short Bowel Animal Model. JPEN J Parenter Enteral Nutr 2018; 42:1238-1251. [PMID: 29701901 DOI: 10.1002/jpen.1167] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/27/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Parenteral nutrition (PN) provides nutrition intravenously; however, this life-saving therapy is associated with significant liver disease. Recent evidence indicates improvement in PN-associated injury in animals with intact gut treated with enteral bile acid (BA), chenodeoxycholic acid (CDCA), and a gut farnesoid X receptor (FXR) agonist, which drives the gut-liver cross talk (GLCT). We hypothesized that similar improvement could be translated in animals with short bowel syndrome (SBS). METHODS Using piglets, we developed a novel 90% gut-resected SBS model. Fifteen SBS piglets receiving PN were given CDCA or control (vehicle control) for 2 weeks. Tissue and serum were analyzed posteuthanasia. RESULTS CDCA increased gut FXR (quantitative polymerase chain reaction; P = .008), but not downstream FXR targets. No difference in gut fibroblast growth factor 19 (FGF19; P = .28) or hepatic FXR (P = .75), FGF19 (P = .86), FGFR4 (P = .53), or Cholesterol 7 α-hydroxylase (P = .61) was noted. PN resulted in cholestasis; however, no improvement was noted with CDCA. Hepatic fibrosis or immunostaining for Ki67, CD3, or Cytokeratin 7 was not different with CDCA. PN resulted in gut atrophy. CDCA preserved (P = .04 vs control) gut mass and villous/crypt ratio. The median (interquartile range) for gut mass for control was 0.28 (0.17-0.34) and for CDCA was 0.33 (0.26-0.46). CONCLUSIONS We note that, unlike in animals with intact gut, in an SBS animal model there is inadequate CDCA-induced activation of gut-derived signaling to cause liver improvement. Thus, it appears that activation of GLCT is critically dependent on the presence of adequate gut. This is clinically relevant because it suggests that BA therapy may not be as effective for patients with SBS.
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Affiliation(s)
- Gustavo Villalona
- Department of Surgery, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Amber Price
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Keith Blomenkamp
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | | | - Saurabh Saxena
- Department of Surgery, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Thomas Ratchford
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Matthew Westrich
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Vindhya Kakarla
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Shruthika Pochampally
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - William Phillips
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Nicole Heafner
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Niraja Korremla
- Department of Pathology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Jose Greenspon
- Department of Surgery, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Miguel A Guzman
- Department of Pathology, Saint Louis University School of Medicine, St. Louis, Missouri, USA
| | - Ajay Kumar Jain
- Department of Pediatrics, Saint Louis University School of Medicine, St. Louis, Missouri, USA
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8
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Jiang P, Wang J, Sheng N, Wei D, Dai J. Effects of pentachlorophenol on the quail (Coturnix japonica) liver detoxification pathway. CHEMOSPHERE 2017; 177:44-50. [PMID: 28284116 DOI: 10.1016/j.chemosphere.2017.02.154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/28/2017] [Accepted: 02/28/2017] [Indexed: 06/06/2023]
Abstract
Pentachlorophenol (PCP), an extensively used pesticide and biocide, is of critical environmental concern due to its toxicity and recalcitrance to degradation. In this study, the effect of PCP on induction of transcription factors, cytochrome P450 (CYP450) genes, and the antioxidative enzyme system were investigated in the quail liver. A total of 60 (4- to 6-week-old) male quails (Coturnix japonica) were administered 0, 0.05, 0.5, and 5 mg/kg/d PCP orally for 42 d. Following exposure, both absolute and relative liver weights were significantly lower than those of the control. Using gas chromatography-mass spectrometry, PCP accumulation was, from highest to lowest, kidney > liver > muscle for all exposure groups. The expressions of CYP1A5, CYP1B1, CYP2C18, nuclear translocator 1 (ARNT1), and aryl hydrocarbon receptor 1 (AHR1) were induced after PCP treatment, and increases were found in the activities of hepatic superoxide dismutase (SOD) and catalase (CAT), and the content of hepatic malondialdehyde (MDA). In addition, exposure to PCP induced an increase in liver 8-hydroxydeoxyguanosine (8-OHdG) and significantly elevated ethoxyresorufin O-deethylase (EROD), methoxyresorufin O-demethylase (MROD), and 7-ethoxycoumarin-O-deethylase (ECOD) activity, but decreased that of glutathione peroxidase (GSH-Px), benzyloxyresorufin O-debenzylase (BROD), pentoxyresorufin O-depentylase (PROD), and erythromycin N-demethylase (END). No significant responses were observed for benzyloxy-trifluoromethyl-coumarin (BFC). The protein level of liver nuclear factor κB (NF-κB) was higher, whereas that of nuclear factor E2-related factor 2 (Nrf2) was lower for exposed quail. These results suggest that PCP affects quail oxidative stress by modulating CYP450 enzymes and nuclear transcription factors.
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Affiliation(s)
- Peng Jiang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Jianshe Wang
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Nan Sheng
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Dongbing Wei
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China
| | - Jiayin Dai
- Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, PR China.
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